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  #76  
Old 03-01-2010, 06:14 PM
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bikerphil bikerphil is offline
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Quote:
Originally Posted by Mashermoto View Post
I will say though that even with all 12 discs in place it is much quiter than I thought it would be...which is what I wanted. It has just enough of a mellow growl to please me, but it doesn't make my head rattle going down the road.

However, if you want loud, you can take all the discs off and run it open
Less discs= quieter, richer mixture, more back pressure
More discs= louder, leaner mixture, less back pressure

One time I was running 10 discs in mine (single 4-1 Supertrapp) and all was good for the type of roads in my area. When I reached the twisty roads in NC, I found that I needed more low end grunt. I ran 5 discs increasing back pressure, which gave the bike better low end. You'll find out later that adding and removing discs will change your plug color. Supertrapp, A+ for tunability.
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79F - owned since '89 - FJ fork mod, solo seat mod, Dyna 3Ω's, 14MM M/C (168K miles)
79SF - every day rider, solo seat mod, Brembo 16MM M/C, Accel 3Ω's, Supertrapp (125K miles)

"If it ain't broke, modify it"

30 year XS11 owner


Last edited by bikerphil; 03-01-2010 at 06:18 PM.
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  #77  
Old 04-17-2010, 08:54 PM
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WMarshy WMarshy is offline
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How about a 2nd/3rd gear drive by?
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'79 XS11 F
Stock except K&N

'79 XS11 SF
Stock, no title.

'84 Chevy K-10 "Big Blue"
GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

"What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~
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  #78  
Old 04-19-2010, 06:46 PM
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xj11john xj11john is offline
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Very nice exhaust, and I like what you've done with the bike too!
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  #79  
Old 04-21-2010, 03:32 PM
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madmax-im madmax-im is offline
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I found a MAC 4 to 1 on ebay recently and also bought the SuperTrapp Muffler....soon to do this...I'll document it in my own thread...but this thread was most certainly an inspiration!
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  #80  
Old 04-30-2010, 08:12 PM
R.S. R.S. is offline
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Hate to ask the obvious, but why not just clone the OEM pipes - perhaps with a supertrap fitting?

Just take the exact dimensions, and make them?
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  #81  
Old 05-10-2010, 11:57 AM
cptomlinson cptomlinson is offline
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Holes in Baffles

the bike on this youtube video sounds great! http://www.youtube.com/watch?v=zB2s4mGZsng. he says that he drilled holes in the baffles. would that cause the exhaust temp to go up and damage the engine? anyone know? if it does not hurt anything, how and where would you drill these holes?
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  #82  
Old 03-08-2017, 04:09 PM
jrotilie jrotilie is offline
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Hello, I am a tig welder in Ohio, also looking for custom exhaust, about to make my own 4-2 that has both mufflers on the same side similar to harley, if it turns out ok I may consider selling custom setups, but custom work is not cheap.
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  #83  
Old 03-08-2017, 04:28 PM
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IanDMacDonald IanDMacDonald is offline
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Sounds interesting.
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1979 XS1100F
2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.
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  #84  
Old 03-08-2017, 04:32 PM
jrotilie jrotilie is offline
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Quote:
Originally Posted by IanDMacDonald View Post
Sounds interesting.
I haven't seen it done on a xs so far, so just gonna wing it, the question is: pie cuts or bend my own tube
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  #85  
Old 03-08-2017, 07:20 PM
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TopCatGr58 TopCatGr58 is offline
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Hey there Jrotilie,

The diameter for the headers are ~1.5", and unless you have a fancy Mandrell bending machine, then it can be a real PITA to manually bend the pipes without stuffing them with sand or such to keep them from collapsing, wrinkling, etc.!

I made a set of headers for a fellow Xsive a couple of years ago, take a look at this thread for hopefully some ideas!?

http://www.xs11.com/forum/showthread...xhaust+project

T.C.
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  #86  
Old 03-14-2017, 09:21 AM
Bax Bax is offline
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Still making custom SS exhaust

Just throwing it out there.....

Last year I got a replacement exhaust from Heinz Wyes for my SG. Still made per order with long lead time, ordered late Jan 16 and received Sep 16. Excellent materials and craftsmanship. Drop in pipes just have to drill the holes in the support fins.
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  #87  
Old 03-14-2017, 10:31 AM
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IanDMacDonald IanDMacDonald is offline
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Quote:
Originally Posted by Bax View Post
Just throwing it out there.....

Last year I got a replacement exhaust from Heinz Wyes for my SG. Still made per order with long lead time, ordered late Jan 16 and received Sep 16. Excellent materials and craftsmanship. Drop in pipes just have to drill the holes in the support fins.
Is that the German stainless system?
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1979 XS1100F
2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.
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  #88  
Old 03-14-2017, 11:01 AM
Bax Bax is offline
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Yup. The custom exhaust from Germany.

http://www.xs1100-frw.de/HOMEPAGE_03/Index2.htm

The contact info is in the link.
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